JPH0536086Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a cover fixing structure for covering an opening in a vehicle body, such as an engine cover on which a seat of an industrial vehicle is placed.

(Prior Art) Conventionally, as this type of cover fixing structure, there are, for example, those shown in Figs. 4 to 8 (see Service Bulletin No. 469, issued by Nissan Motor Co., Ltd., October 1981). . That is, 100 is an engine cover disposed on the floor of a cabin of an industrial vehicle, for example. A seat S is placed on the upper surface of this engine cover 100, and one end of the seat S is attached to a hinge 101.
It is rotatably attached to the vehicle body floor 102 via the opening 103 for opening and closing an engine inspection opening 103 provided in the floor 102. As shown in FIG. 6, the fixed part of this engine cover 100 has one end connected to a hook 104 provided at the free end 100a of the engine cover 100, and one end attached to the operating lever 10.
A free end 105a of a hook member 105 pivotally connected to the middle part of the operating lever 10 is hooked to the operating lever 10.
6 is pivotally connected to a lock bracket 107 fixed to the floor corner side surface 102a. In order to fix the engine cover 100, the operating lever 106 is rotated as shown by the chain line in the figure to raise it up against the floor 102, and the free end 105a of the hook member 105 is attached to the engine cover 10.
0 on the hook 104, and then turn the operating lever 1.
06 is rotated and tilted toward the floor surface side, tension is applied to the hook member 105, and this tension holds the hook member 105 fixed so that it does not come off the hook 104. Lock bracket 1 above
07 is fastened to the floor 102 by bolts 108 and nuts 109, and further includes bolt insertion holes 110.
is a long hole so that the lock bracket 107 can be adjusted in position in the vertical direction to absorb assembly errors of the engine cover 100. Also engine cover 1
A hook 104 is used to apply compressive force to the seal rubber 111 interposed between 00 and the floor 102.
A gap g was provided between the floor 102 and the floor 102.

(Problem to be solved by the invention) However, in the case of the deceptive conventional example, for example, in the event of a large input such as a vehicle collision, the engine cover
00, force is applied in the opening direction (A direction in the figure) due to the inertia of the sheet S etc. placed on top of the cover, and the hook member 105 hooked to the hook 104 in the cover fixing part is extended. The lock bracket 107 is lifted upward (in the direction B in the figure) via the hook member 105, the distance between the hook 104 and the lock bracket 107 narrows, and the tension of the hook member 105 decreases, causing it to loosen.
In this state, if a downward input is applied to the engine cover 100 in its free end direction (direction C in the figure) and pushing down the hook 104, the hook member 1
05 rotates forward (direction D in the figure) and hook 10
There was a risk that the hook member 105 would easily come off from the upper end of the engine cover 100, and the hook 104 would retreat to the position shown by the chain line in the figure, causing the engine cover 100 to become unfixed. Therefore, the upper end of the hook 104 is extended upward to make it difficult for the hook member 105 to come off.
It becomes difficult to hook into 4. On the other hand, if the hook member 105 is made longer, the workability is improved, but the tension of the hook member 105 when it is fixed becomes smaller, resulting in a decrease in the fixing force.

The present invention was devised to solve the above-mentioned problems of the prior art, and its purpose is to prevent the hook from loosening even if the hook member becomes loose during a large input such as during a collision, without impairing workability. It is an object of the present invention to provide a cover fixing structure capable of preventing the cover from falling off and maintaining a locked state.

(Means for Solving the Problems) In order to achieve the above object, in the present invention, a hook provided at the free end of the cover for opening and closing the vehicle body opening has one end pivoted to the middle part of the operating lever. The free end of the supportingly connected hook member is hooked, one end of the operating lever is pivotally connected to a lock bracket fixed to the vehicle body, and the operating lever is rotated to be hooked to the lock. In the cover fixing structure for fixing the cover by applying tension to the lock bracket, the lock bracket is provided with a restricting portion whose tip extends between the hook and the vehicle body and restricts movement of the hook toward the vehicle body.

(Function) Even if a large force is applied to the vehicle body due to a collision, causing the lock bracket to shift toward the hook and loosen the hook member, the movement of the hook is regulated by the restriction section provided on the lock bracket, and the hook is prevented from moving. The hanging member does not fall off the hook.

(Example) The present invention will be explained below based on the illustrated example. In FIG. 1 showing a cover fixing structure according to an embodiment of the present invention, reference numeral 1 indicates the freedom of an engine cover 2 to open and close an opening 103 in a vehicle body floor 3 of an industrial vehicle similar to the conventional example shown in FIG. 4, for example. End 2a
This is a hook installed in the The tip 1a of the hook 1 protrudes forward from the free end 2a of the engine cover 2, and the cross-sectional shape of the tip 1a is approximately U-shaped, opening upward. A gap g' is formed between 3 and 3. The upper end of the tip 1a of the hook 1 is set to such an extent that a gap is formed between the upper end and the free end 4a of the hook 4 so that the hook 4, which will be described later, can be easily hooked during the fixing operation. .

Reference numeral 4 designates a hook member whose free end 4a is hooked to the hook 1 and whose other end is pivotally connected to the middle part of the operating lever 5. This hooking member 4 has a substantially U-shaped plan view, and is slightly bent in the middle. On the other hand, the hook-side end of the operating lever 5 is pivotally connected to a lock bracket 8 fastened to a side surface 31a of a corner portion 31 of the floor 3 of the vehicle body with a bolt 6 and a nut 7. The bolt insertion hole 9 of the bracket 8 is an elongated hole, and the lock bracket 8 is movable in the vertical direction. This movement of the lock bracket 8 absorbs assembly errors of the engine cover 2, as in the conventional case.

On the other hand, reference numeral 10 denotes a regulation plate as a regulation part whose tip extends between the hook 1 and the floor 3. This regulation plate 10 is integrally fixed to the bottom surface of the lock bracket 8 by welding or the like, and is adapted to move together with the lock bracket 8. By fixing the regulation plate 10 to the bottom surface of the lock bracket 8 in this manner, the effect of reinforcing the bottom surface of the lock bracket 8 can be obtained, and the weight of the lock bracket 8 can be reduced. This regulation plate 10 is provided with a bolt insertion hole 11 that corresponds to the bolt insertion hole 9 provided in the lock bracket 8. Further, the tip end 10a of the regulation plate 10 is bent to follow the curvature of the corner part 31 of the floor 3,
At the predetermined assembly position of the lock bracket 8,
The tip portion 10a is adapted to come into contact with the floor 3.

To further explain the dimensional relationship in detail, the dimension a of the locking portion of the hook 1 is formed to be approximately the same as the dimension b of the wall portion 8a of the lock bracket 8 facing the hook 1; When the operating lever 5 is rotated in the locking direction, it is configured so that it does not go over the opposing wall 8a.

In the case of the cover fixing structure having the above configuration, when a large input is applied to the vehicle body due to a collision or the like as shown in FIG. 2, the hook 1 provided on the engine cover 2 is first moved upward (A direction),
As the hook member 4 is extended, the lock bracket 8 slides up along the corner side surface 31a (in the B' direction), and the distance from the floor surface to the free end 4a of the hook member 4 increases. However, the regulation plate 10 moves upward by the amount of displacement of the lock bracket 8, and the distance between the tip 10a of the regulation plate 10 and the free end 4a of the hook member 4 increases by the amount of extension of the hook member 4. The quantity is small. As a result, the free end 4a of the hook member 4 does not come off from the upper end of the hook 1 even if a large input is applied to the engine cover 2 forward and downward with the hook member 4 loosened. Therefore, even if the impact is removed and the engine cover 2 attempts to return to its original position, the hook member 4 is hooked to the hook 1 and the engine cover 2 is
remains fixed to the floor 3. Furthermore, when a seat is placed on the engine cover 2, the safety of the occupant sitting on the seat can be improved.

FIG. 3 shows a cover fixing structure according to another embodiment of the present invention, and the same components as in the above embodiment are denoted by the same reference numerals. 12 is not fixed to the bottom surface of the lock bracket 8, but is adhesively fixed to the vertical wall 8a of the lock bracket 8 facing the hook 1. That is, the regulation plate 10
has a substantially L-shaped cross section, and has a vertical portion 12a and a vertical portion 12 that are adhesively fixed to the vertical wall 8a of the lock bracket 8.
The horizontal portion 12b extends from the lower end of the hook 1 between the hook 1 and the floor 3. The horizontal portion 12b of the regulating plate 12 restricts the downward movement of the hook 1, and the amount of downward movement of the hook 1 is restricted by the amount by which the lock bracket 8 slides up, and the hook member 4 is removed from the hook 1. This is prevented.
The other configurations and functions are the same as those of the previous embodiment, so their explanation will be omitted.

Although the engine cover has been described in each of the above embodiments, the present invention is not limited to the engine cover, and can be applied to, for example, fixing a cover that covers a storage space provided under the driver's seat.

(Effects of the invention) The present invention has the above-mentioned structure and operation, and since the movement of the hook is regulated by the regulating part provided on the lock bracket, the hook member may be damaged when a large input is applied in the event of a collision. Even if the cover becomes loose, the hook member can be prevented from falling off the hook, and the cover can be securely fixed. Further, there is no need to extend the upper end of the hook in order to prevent the hook member from falling off as in the conventional case, and the workability of the fixing work is not impaired.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of the main part of a cover fixing structure according to an embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view of the main part showing a state in which a large input is applied to the fixing structure of FIG.
The figure is a vertical cross-sectional view of the main part of a cover fixing structure according to another embodiment of the present invention, FIG. 4 is a side view of the engine cover part of the conventional cover fixing structure, and FIG. A perspective view, FIG. 6 is a vertical sectional view of the main part of the cover fixing part in Fig. 4, FIG. 7 is a front view of the main part of the fixing part in Fig. 6, and Fig. 8 is a large input of the fixing part in Fig. 6. FIG. Explanation of symbols, 1...Hook, 2...Engine cover, 2a...Free end, 3...Floor (vehicle body),
4... Hook member, 4a... Free end, 5... Operating lever, 8... Lock bracket, 10, 12...
...Regulatory plate (regulatory section).

Claims (1)

[Scope of Claim for Utility Model Registration] The free end of a hook member, one end of which is pivotally connected to the middle part of an operating lever, is hooked to a hook provided at the free end of a cover that opens and closes an opening in the vehicle body, and the above operation is performed by In a cover fixing structure in which one end of the lever is pivotally connected to a lock bracket fixed to the vehicle body and the cover is fixed by rotating the operating lever and applying tension to a hook member hooked to the hook, the lock bracket is fixed to the cover. A cover fixing structure comprising: a regulating portion whose tip extends between the hook and the vehicle body to restrict movement of the hook toward the vehicle body.